Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Hazardous Weather Conditions

Flood Watch in effect from December 8, 05:00 PM MST until December 11, 05:00 PM MST

Current conditions at

LIBBY (LBBM8)

Lat: 48.40361°NLon: 115.53917°WElev: 2070.0ft.

32°F

0°C

Humidity	99%
Wind Speed	S 0 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Last update	09 Dec 11:25 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

10 Miles NNW Happys Inn MT

Flood Watch until December 11, 05:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch until December 11, 05:00pm
NOW until 5:00pm Thu
Flood Watch
Overnight
Low: 33 °F
Snow
Wednesday
High: 50 °F
Rain
Wednesday Night
Low: 45 °F
Rain
Thursday
High: 46 °F
Rain then
Rain Likely
Thursday Night
Low: 37 °F
Chance
Rain/Snow
Friday
High: 45 °F
Rain/Snow
Friday Night
Low: 35 °F
Chance Rain
Saturday
High: 44 °F
Chance
Rain/Snow

Detailed Forecast

Overnight

Snow. Low around 33. Calm wind becoming south southeast 5 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Rain. High near 50. Southwest wind 10 to 16 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Rain. Low around 45. Southwest wind 15 to 17 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Thursday

Rain. High near 46. West southwest wind 10 to 13 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

A chance of rain before 11pm, then a chance of rain and snow. Snow level 4900 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 37. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Friday

Rain and snow, becoming all rain after 2pm. Snow level 3800 feet rising to 5800 feet in the afternoon. High near 45. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of rain. Mostly cloudy, with a low around 35. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday

A chance of rain and snow. Mostly cloudy, with a high near 44.

Saturday Night

A chance of rain and snow, mainly after 11pm. Mostly cloudy, with a low around 34.

Sunday

A chance of rain and snow. Mostly cloudy, with a high near 45.

Sunday Night

A chance of rain and snow. Mostly cloudy, with a low around 35.

Monday

Rain and snow likely. Mostly cloudy, with a high near 45.